The full details of the NSRI study that was approved by the ZonMw Grant can be read here and its ethics approval can be found here.

The non-WMO (research that does not fall under the Medical Scientific Research with Humans Act) approval of the NSRI can be found here.

A number of pilot studies were conducted in preparation for the NSRI.


In Year 1,  we conducted two pilot studies:

In Year 2, we conducted 2 pilots on the explanatory variables to be included in the national survey:

The ethics approval for these studies can be seen here.